title: Why CT-guided?
mesh_terms: D000779:Anesthetics, Local / Q000008:administration & dosage*; D002045:Bupivacaine / Q000008:administration & dosage*; D002908:Chronic Disease; D005938:Glucocorticoids / Q000008:administration & dosage*; D006801:Humans; D007267:Injections; D008775:Methylprednisolone / Q000008:administration & dosage*; D009408:Nerve Compression Syndromes / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D009437:Neuralgia / Q000209:etiology / Q000628:therapy*; D010502:Perineum / Q000294:innervation*; D010525:Peripheral Nerves / Q000033:anatomy & histology; D015641:Radiography, Interventional; D014057:Tomography, X-Ray Computed; D018084:Ultrasonography, Interventional
chemical_list: D000779:Anesthetics, Local; D005938:Glucocorticoids; D008775:Methylprednisolone; D002045:Bupivacaine